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From: Colin Macleod <user7@newsgrouper.org.invalid>
Newsgroups: comp.lang.tcl
Subject: Re: The best way to copy a list?
References: <102tpah$2vfsm$1@dont-email.me> <102u86g$33dlm$2@dont-email.me> <102u9m8$33tvo$1@dont-email.me>
Date: Wed, 18 Jun 2025 12:19:19 GMT
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Mark Summerfield <m.n.summerfield@gmail.com> posted:
> 
> I'm coming to Tcl from Python & Go. In Python saying `a = [1, 2, 3]` and 
> then `b = a` makes `b` a _reference_ to `a` rather than an independent 
> variable. Now I realise that Tcl doesn't do it that way and that `set a 
> $b` works fine.

When I had to do some Python for work, after being familiar with Tcl,
I was quite shocked to find that Python shares values in that way! 😲

-- 
Colin Macleod ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ https://cmacleod.me.uk

Warning: Gumption level low, top-up when possible!